Improved floue-bolt



H. N SHULTz.

Flour Bolt.

Patented Sept. 1, 1868.

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Letters Patent No. 81,831, dated September 1, 1868.

IMPROVED FLOUR-BOLT.

"digs fitlgthtle retard in in time itttttrs haunt nut mating part at tttsamt.

TO ALL WHOM IT MAY OONGERNr of violence to the shocks, or to allow the'bolt to run smoothly, if desired.

Be it knownthat I, H. NJSHULTZ, of Sahillasville, in the county of Frederick, and State of Maryland, have invented a new and improvedFlour-Bolt; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in which- -My invention is represented by an end elevation of the bolt-screen or case, with my improvement attached thereto. Q v

The object of this invention is to provide a simple and inexpensive device which can be used in connection with any form of flour-bolt, and applied to the old ones now in use, and by which the bolt can bejarred or subje'cted toa series of, sudden shocks during each revolution, so as thereby to be cleansed and kept free from the accumulation of flour. The device is so arranged that it can be readily adjusted to impart any required degree In the drawings, A represents the screen or case within which the bolt runs, and 13 represents a cam-wheel on the end of thebolt-shaft, outside of the Case; The shaft itself passes through a slot in the case, hearing on thebottom of the slot, in such a manner that it is capable of moving vertically'in its hearings, or of bouncing up from its bearing, if interfered with during its revolution by any object beneath it. Under the cam-wheel, pivoted torthefend of thecase by a pin, a, is a bent lever, O, the upper end of which is slightly'bevelled, as seen at c, in order that the cams of the wheel B may ride easily over it, and the lower end of which extends down towards the bottom of the case, and is held in position by a pin, m, fixed in one of a series of holes, n n n, in the end of the case. v I I v v I The motion of the bolt is in the direction of thcarrow shown in the drawing. The lever 0 being fastened in the. desired position by a pinfln, the cams of the wheel B. come in contact with the bevelled end, 0, and, as

they ride over it, lift the end of the shaft, and drop it again upon its bearing with a sudden shock, the violence.

of which will bcproportionate to the height to which the cams lift the shaft. This height is perfectly controlled and adjusted by setting, the pin 1):, further upor down in the series of holes H n. i

The whole arrangement is exceedingly simple and eiiectivc. It can be attached to any bolt at the cost of a few cents at the most, and when attached will enable the miller to keep his belt perfectly clean. It can be readily thrown back out of the way by placing the pin m on the right side of thelever.

It does not intheslightest degree interfere with the reverse action of the bolt, nor can it be put out of order by any change in the action of the machinery, however sudden and violent.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination of the cam-wheel B upon the end of the lour-bolt, with the lever C and adjustable stop m, operating as described, whereby, as the bolt rotates forward, the stop holds the lever firmly in place, and as it rotates backward it allows the lever to swing out of the way, substantially as described, for the purpose specified.

H. N. SHULTZ. Witnesses:

JNO. M. SLEASMAN, P. H. Lone. 

